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Platinum Iridium

Platinum-iridium is an alloy of the platinum group precious metals platinum and iridium.

Surepure Chemetals typically supplies alloy proportions of 90% platinum / 10% iridium and 80% platinum / 20% iridium. Surepure Chemetals sells platinum-iridium conforming to the ASTM B684 specification (including ASTM B 684-97).

These have the chemical stability of platinum, but increased hardness.

Due to its high density, hardness, and resistance to corrosion, platinum-iridium was used to make the international prototype kilogram and the international prototype meter.

One use for Pt/Ir alloy is fabrication of metal microelectrodes for electrical stimulation of nervous tissue and electrophysiological recordings. Pure iridium is very difficult to pull into small diameter wires, while pure platinum has a low Young's modulus which makes pure platinum wires bend easily during the insertion in nervous tissue; hence Pt/Ir alloy has an optimal combination of mechanical and electrochemical properties for this application.

Surepure Chemetals sells platinum iridium wire and platinum iridium sheet.

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The products below are representative of what we sell. If you don't find what you're looking for, please request a quote or contact us.

Buy Platinum Iridium Wire and Rod from Surepure Chemetals

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P/N	Purity	Diameter	Length	Price
5408	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	6 in. / 0.5 ft. / 0.153 m	$565.92
4024	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	12 in. / 1 ft. / 0.305 m	$890.36
4029	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	24 in. / 2 ft. / 0.610 m	$1,670.72
4036	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	3 ft. / 0.914 m	$2,359.03
4042	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	4 ft. / 1.22 m	$2,918.28
4047	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	5 ft. / 1.524 m	$3,497.90
4053	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	10 ft. / 3.048 m	$6,508.55
4059	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	20 ft. / 6.096 m	$12,658.86
4066	80 % Platinum, 20 % Iridium	0.032 in. / 0.813 mm / 20 gauge	50 ft. / 15.2 m	$29,303.08
P/N	Purity	Diameter	Length	Price
9833	90 % Platinum, 10 % Iridium	0.036 in. / 0.914 mm / 19 gauge	86 ft. / 26.21 m	$41,730.86
10728	90 % Platinum, 10 % Iridium	0.036 in. / 0.914 mm / 19 gauge	100 ft. / 30.48 m	$48,716.50
13122	90 % Platinum, 10 % Iridium	0.036 in. / 0.914 mm / 19 gauge	180 ft. / 55 m	$87,548.21
P/N	Purity	Diameter	Length	Price
8899	90 % Platinum, 10 % Iridium	0.037 in. / 0.95 mm	3 in. / 76.2 mm	$217.35
5870	90 % Platinum, 10 % Iridium	0.037 in. / 0.95 mm	6 in. / 0.5 ft. / 0.153 m	$368.70
12623	90 % Platinum, 10 % Iridium	0.037 in. / 0.95 mm	12 in. / 1 ft. / 0.305 m Wire, hand-straightened 12 inch length(s)	$715.40
5871	90 % Platinum, 10 % Iridium	0.037 in. / 0.95 mm	12 in. / 1 ft. / 0.305 m Wire, by coil	$695.40
12624	90 % Platinum, 10 % Iridium	0.037 in. / 0.95 mm	24 in. / 2 ft. / 0.610 m Wire, hand-straightened 12 inch length(s)	$1,370.80
5872	90 % Platinum, 10 % Iridium	0.037 in. / 0.95 mm	24 in. / 2 ft. / 0.610 m Wire, by coil	$1,330.80
12625	90 % Platinum, 10 % Iridium	0.037 in. / 0.95 mm	3 ft. / 0.914 m Wire, hand-straightened 12 inch length(s)	$2,013.20
5873	90 % Platinum, 10 % Iridium	0.037 in. / 0.95 mm	3 ft. / 0.914 m Wire, by coil	$1,953.20

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